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1、gkxx精品课件Unit 3 Amazing PeopleGrammarPresent perfect tense gkxx精品课件 Go over the news story on Page 2 and find the sentences using the present perfect tense. Please explain why the tense is used in these sentences.gkxx精品课件The uses of the present perfect tense gkxx精品课件The disappearance of Justin (make)
2、Kelly very unhappy. has madeWeusethepresentperfecttensetotalkaboutthingsthathappenedintherecentpast,butareconnectedtothepresent.gkxx精品课件I (not see)Justin since last Friday night. have not seenWealsousethepresentperfecttensetotalkaboutsomethingthatstartedinthepast,andisstillhappeningnow.gkxx精品课件Compl
3、ete the following sentences with the proper tense. 1 We (study) English for about five years.2 They (live) in the south since their daughter was born.3 I (read) your article three times. Its well written.4 The student (finish) her homework already. 5 Eric (go) back to his hometown today. 6 The polic
4、e (just finish)searching the area.have studiedhave livedhave readhas finishedhas gonehave just finishedgkxx精品课件We use the present perfect tense when the exact time of an action is not clear or important. We use it with time expressions such as: already ever for just lately never recently since yet g
5、kxx精品课件already,yet;for,since We use already for affirmative statements and yet for negative statements.We use for + a period of time and since + a point in time. gkxx精品课件He has just gone out.(=He went out a few minutes ago.)We use the present perfect tense here to tell others that he isnt here now.
6、I have just heard the news.(Now I know the news.)We use the present perfect tense to talk about actions that were completed only a short time ago. In this case, just is used. Pay attention to the position of just.gkxx精品课件We can also use the present perfect tense for repeated actions, that is, we use
7、 the present perfect tense with the time expressions once/twice/three timesgkxx精品课件Tom has rung up three times this morning.(Now it is still in the morning.)Tom rang up three times this morning.(Now it is not still in the morning.)Actions occurring in an incomplete period might be indicated by today
8、 or this morning /afternoon/evening/week/month/year/century or all day/night/week, all the time, always etc.gkxx精品课件Look at the following sentences and point out what tense or tenses are used in them and the reasons why they are used. gkxx精品课件 1 We have studied English for about five years. We began
9、 to study it five years ago .2 They moved to the south in 1990 and have lived there since then.3 Eric left home last year and has just come back.4 Justin has been away from home for several days. He disappeared last Friday.5 They bought this house three years ago and they have lived here since then.
10、 6 My brother went to see my grandpa last week. He has visited him three times this month.gkxx精品课件The present perfect tense and the past simple tense 1 you my pen? Yes, I it on your desk just now.(see)2 you dinner? Yes, I it with Mary.(have)3 the postman yet this morning? Did the postman come this m
11、orning?(come) 5 I him for a long time. Hello! I (not)you were here in Nanjing. How long have you been here?(know)HaveseensawHavehadhadHavecomehaveknowndidntknowgkxx精品课件The present perfect tense is normally used for an action which lasts throughout an incomplete period, but with the past simple tense
12、, we use time expressions which a fixed point in the past.c.f. We havent seen Justin for a week.(He is still missing.) Justin disappeared last week.(It may mean that this week Justin is here.) He has smoked since he left school.(He still smokes.) He smoked for six months.(It means that he stopped sm
13、oking then. gkxx精品课件 Sometimes, however, the action finishes at the time of speaking.It has been very cold lately but its just beginning to get warmer.On meeting someone, you may say: I havent seen you for ages.(But I see you now.)gkxx精品课件For a past action whose time is not definite and often has a
14、result in the present.1 Tom has had a bad car crash.(Hes probably still in hospital now.) Tom had a bad car crash.(But hes probably out of hospital now.)2 The lift has broken down.(We have to use the stairs.) The lift broke down.( But its probably working again now.)gkxx精品课件Read the diary entry and
15、then complete it using the correct forms of the verbs in brackets.gkxx精品课件 (2) saw (3) has visited (4) loves (5) hasnt visited (6) has swum (7) has never met (8) has dived (9) has found (10) hasnt found (11) Has, been gkxx精品课件Present perfect continuous tense gkxx精品课件The uses of the Present perfect c
16、ontinuous tense1 I for an hour and he still hasnt turned up.(wait)2 Im so sorry Im late. you long?We sometimes use the Present perfect continuous tense to talk about actions that started in the past and are still continuing, or have just finished but are still connected to the present in some way.ha
17、vebeenwaitingHavebeenwaitinggkxx精品课件Go over Points 1 and 2 on page 9.gkxx精品课件The form of the Present perfect continuous tenseWe form the present perfect continuous tense with have/has been and the present participle of the verb. gkxx精品课件 Answers: (2) have been talking (3) have been taking (4) have b
18、een watching (5) have seen (6) have been writing gkxx精品课件Present perfect or present perfect continuous tense?gkxx精品课件Li Jia has read a book about Stonehenge.Li Jia has been reading a book about Stonehenge.gkxx精品课件In the first sentence, it means the action read isnt still continuing, and Li Jia knows
19、 what the book is about now, but in the second sentence , it means the action read is still continuing.c.f. Ive cleaned the house. Ive been cleaning the house.Read Point 1 on page 10.gkxx精品课件 I Egypt twice this month.(visit)I Egypt for two months. (tour)The present perfect continuous tense cant be u
20、sed with time expressions such as twice or how many times, because in this tense the action is continuous, not stopped and started again.We can use the present perfect tense for repeated actions, and the present perfect continuous tense for non-stop actions.havevisitedhavebeentouringgkxx精品课件how many
21、 times/how long have you swum in the lake? have you been swimming in the lake?We usually use the present perfect tense to ask questions beginning with how many/much, and the present perfect continuous tense to ask questions beginning with how long.HowmanytimesHowlonggkxx精品课件A state verb or an action
22、 verb I have had this camera for five years.(state verb) I have taken photos of UFOs with this camera.(action verb) I have been taking photos of UFOs with this camera.(action verb) An action means something happening or changing. A state means something staying the same. Some examples of action verb
23、s are do, go, and play. Some examples of state verbs are like, know and exist.gkxx精品课件A state verb doesnt mean an action, so it cant be used in a continuous tense. Theyve always had a big garden.How long have you known each other?Hes been in hospital since his accident.gkxx精品课件 Ive never visited Par
24、is. Ive already been to Paris.always, never, yet, already and ever cant be used in a continuous tense.gkxx精品课件I have not been sleeping well since I returned home. Ive been waiting for an hour.We can use for and since with the the present perfect continuous tense.gkxx精品课件 Answers on page 11 A (1)hear
25、d (2) been doing (3) been researching (4) been doing (5) started (6) done (7) read (8) found (9) started (10) been doing (11) been making gkxx精品课件Sample answersB 1 He has been waiting at an underground station. 2 They have been traveling in an UFO. It looks like a saucer. 3 They probably have talked
26、 to animals or plants on the earth as well as creatures on other plants. 4 They have visited Mars, Venus, Jupiter and some other planets.gkxx精品课件How long have you learnt English? Or How long have you been learning English?It has snowed for a long time.It has been snowing for a long time.gkxx精品课件Both
27、 present perfect tense and present perfect continuous tenseAn action which began in the past and is still continuing or has only just finished can, with certain verbs, be expressed by either the present perfect or present perfect continuous.Verbs which can be used in this way include expect, hope, learn, lie, live, sleep, sit, study, wait, want, rain, etc. gkxx精品课件 Homework Part C1 and C2 on page 88 in Workbook Prepare Task 同学们来学校和回家的路上要注意安全同学们来学校和回家的路上要注意安全
